Quarterly report pursuant to Section 13 or 15(d)

TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of amortized cost, unrealized gains and losses accumulated in other comprehensive income, and fair value of available-for-sale securities (Details)

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TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE - Schedule of amortized cost, unrealized gains and losses accumulated in other comprehensive income, and fair value of available-for-sale securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost $ 264,166 $ 218,577
Accumulated impairment loss (363) (413)
Unrealized loss accumulated in other comprehensive income/(loss) (943) (1,543)
Available-for-sale securities, at fair value 262,860 216,621
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost 193,160 172,689
Accumulated impairment loss (51) (61)
Unrealized loss accumulated in other comprehensive income/(loss) 1,218 940
Available-for-sale securities, at fair value 194,327 173,568
Non-US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost 54,123 29,121
Accumulated impairment loss (312) (352)
Unrealized loss accumulated in other comprehensive income/(loss) (1,398) (1,753)
Available-for-sale securities, at fair value 52,413 27,016
U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost 16,883 16,767
Accumulated impairment loss 0 0
Unrealized loss accumulated in other comprehensive income/(loss) (763) (730)
Available-for-sale securities, at fair value $ 16,120 $ 16,037